[The Conversation Africa] Kenya celebrates 60 years of independence this year. As a political scientist who has studied Kenya for the past 20 years, I consider a turning point from each decade that helped to shape the east African country’s post-colonial politics. I haven’t selected elections, assassinations or other moments that have enjoyed much coverage over the years. Instead, I turn to often-forgotten moments that shed light on the country’s key steps forward – and backwards – and the role of agency and institutions.